difference这个词有点特殊，它既是可数名词，又是不可数名词，因此具体何时使用复数形式，取决于语境。
difference：
n.差别;差异;不同(之处);变化(之处);差;差额;意见分歧;不和。
vt.辨别;区分。
扩展资料
There are no significant differences between the two groups of students.
这两组学生没有明显差别。
Theres no difference in the results.
结果没有差别。
A few kind words at the right time make all the difference.
在适当的时候说几句体贴话效果迥然不同。
There is no difference between the two in quantitative terms.
两者在数量上毫无差别。
There is a fundamental difference between the two points of view.
这两个观点有根本区别。
